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Yatsengia
Classification
Phylum:
Cnidaria
Class:
Anthozoa
Subclass:
Rugosa
Order:
Stauriida
Suborder:
Lithostrotionina
Family:
Lithostrotionidae
Subfamily:
Yatsengiinae
Formal Genus Name and Reference:
Yatsengia Huang in Yoh & HUANG, 1932, p. 31
Type Species:
Waagenophyllum (Yatsengia) asiatica HUANG, 1932, p. 56, OD, †3866, IGP, Nanking
Images
(Click to enlarge in a new window)
Fig. 257,3a,b. *Y. asiatica (Hung), holotype, Chihsia Ls., Kweichow, 1 mi . W. of Laochialiang, Lipohsien, a, b, transv., long. secs., X4.0 (Huang, 1932)
Synonyms
Geographic Distribution
Asia (China-Japan-Camb.-Iran-Turkey)
Age Range
Beginning Stage in Treatise Usage:
L. Perm.(Chihs.)
Beginning International Stage:
Asselian
Fraction Up In Beginning Stage:
0
Beginning Date:
298.89
Ending Stage in Treatise Usage:
L. Perm.(Chihs.)
Ending International Stage:
Kungurian
Fraction Up In Ending Stage:
100
Ending Date:
274.37
Description
Fasciculate, corallites slender, septa few, major septa long, commonly reaching axis, where cardinal and counter may appear continuous, axial parts of others may become disconnected and form radial septal lamellae in wide axial structure of numerous abaxially declined tabellae that commonly do not form column wall but intermesh with less steeply abaxially declined periaxial tabellae, minor septa short, dissepimentarium narrow, fossula not notable.
References
Museum or Author Information
Classification
Phylum:
Cnidaria
Class:
Anthozoa
Subclass:
Rugosa
Order:
Stauriida
Suborder:
Lithostrotionina
Family:
Lithostrotionidae
Subfamily:
Yatsengiinae
Formal Genus Name and Reference:
Yatsengia Huang in Yoh & HUANG, 1932, p. 31
Type Species:
Waagenophyllum (Yatsengia) asiatica HUANG, 1932, p. 56, OD, †3866, IGP, Nanking
Images
(Click to enlarge in a new window)
Fig. 257,3a,b. *Y. asiatica (Hung), holotype, Chihsia Ls., Kweichow, 1 mi . W. of Laochialiang, Lipohsien, a, b, transv., long. secs., X4.0 (Huang, 1932)
Synonyms
Geographic Distribution
Asia (China-Japan-Camb.-Iran-Turkey)
Age Range
Beginning Stage in Treatise Usage:
L. Perm.(Chihs.)
Beginning International Stage:
Asselian
Fraction Up In Beginning Stage:
0
Beginning Date:
298.89
Ending Stage in Treatise Usage:
L. Perm.(Chihs.)
Ending International Stage:
Kungurian
Fraction Up In Ending Stage:
100
Ending Date:
274.37
Description
Fasciculate, corallites slender, septa few, major septa long, commonly reaching axis, where cardinal and counter may appear continuous, axial parts of others may become disconnected and form radial septal lamellae in wide axial structure of numerous abaxially declined tabellae that commonly do not form column wall but intermesh with less steeply abaxially declined periaxial tabellae, minor septa short, dissepimentarium narrow, fossula not notable.